23457021502 has 8 divisors (see below), whose sum is σ = 35188452216. Its totient is φ = 11727537432.

The previous prime is 23457021499. The next prime is 23457021563. The reversal of 23457021502 is 20512075432.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 456153 + ... + 504964.

It is an arithmetic number, because the mean of its divisors is an integer number (4398556527).

Almost surely, 2^23457021502 is an apocalyptic number.

23457021502 is a deficient number, since it is larger than the sum of its proper divisors (11731430714).

23457021502 is a wasteful number, since it uses less digits than its factorization.

23457021502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 973322.

The product of its (nonzero) digits is 16800, while the sum is 31.

Adding to 23457021502 its reverse (20512075432), we get a palindrome (43969096934).

The spelling of 23457021502 in words is "twenty-three billion, four hundred fifty-seven million, twenty-one thousand, five hundred two".